Flood Warning issued December 18 at 6:48AM PST until December 18 at 10:46PM PST by NWS Seattle WA
发布日期：2025-12-18T14:48+00:00
...The Flood Warning continues for the following rivers in Washington... Snohomish River At Snohomish affecting Snohomish County. * WHAT...Minor flooding is occurring and minor flooding is forecast. * WHERE...Snohomish River at Snohomish. * WHEN...Until late this evening. * IMPACTS...At 25.0 feet, the Snohomish River will cause minor flooding of lowlands not protected by levees and on the Old Snohomish-Monroe highway. A stage of 25 feet on the Snohomish River corresponds to a Phase 2 in the Snohomish County flood program. * ADDITIONAL DETAILS... - At 6:00 AM PST Thursday the stage was 25.4 feet. - Flood stage is 25.0 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 6:00 AM PST Thursday was 27.8 feet. - Forecast...The river will continue to fall this morning before falling below flood stage by this afternoon. - Flood History...This crest compares to a previous crest of 25.4 feet on 12/03/1958. - http://www.weather.gov/safety/flood
Winter Weather Advisory issued December 18 at 3:41AM PST until December 18 at 10:00AM PST by NWS Seattle WA
发布日期：2025-12-18T11:41+00:00
* WHAT...Snow. Additional snow accumulations up to 5 to 7 inches. Winds gusting as high as 40 mph. * WHERE...Cascades of Snohomish and Northern King Counties, Cascades of Whatcom and Skagit Counties, Cascades of Pierce and Lewis Counties, and Cascades of Southern King County. * WHEN...Until 10 AM PST this morning. * IMPACTS...Travel could be very difficult. Strong winds could cause tree damage. * ADDITIONAL DETAILS...Snow levels will increase this morning to around 6000 feet, which could bring a brief period of freezing rain. Confidence is low for freezing rain, but the potential exists for light accumulations.
Wind Advisory issued December 18 at 3:32AM PST until December 18 at 11:00PM PST by NWS Seattle WA
发布日期：2025-12-18T11:32+00:00
* WHAT...South winds 15 to 25 mph with gusts up to 45 mph expected. * WHERE...Island County, Lowlands of Western Skagit and Northwestern Snohomish Counties, Lowlands of Western Whatcom County, and San Juan County. * WHEN...Until 11 PM PST this evening. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. * ADDITIONAL DETAILS...Winds will become more westerly by this evening. Due to saturated soils, increased impacts from higher winds are possible.
Special Weather Statement issued December 17 at 3:33PM PST by NWS Seattle WA
发布日期：2025-12-17T23:33+00:00
Significant rainfall over the past week has increased soil moisture to high levels across western Washington. Additional rainfall of 1 to 2 inches is expected through Friday. This amount of rain will continue to put extra pressure on soil instability, leading to an increased threat of landslides and debris flows, especially from recent burned areas, with this new rainfall acting as a trigger. Numerous landslides have already occurred in Whatcom, Skagit, King Counties and others. More landslides continue to be possible. Areas most susceptible to landslides debris flows under these conditions are steep coastal bluffs, other steep hillsides or road cuts, and recent burned areas. A diminishing threat of landslides and debris flows will continue for several days after the rain ends. For more information about current conditions, visit www.weather.gov/seattle, select Hydrology, and then scroll down for the links to the landslide information pages. For more information on landslides, visit the website for the Washington State Department of Natural Resources landslide geologic hazards at: http://bit.ly/2mtA3wn
